Deep in the very bowels of work today I decided to do
a wash. (We have a machine for our work clothes, so as not to mix any nasty, nasty chemicals or oils we may have upon ours duds.)
Not washing anything particularily offensive today I tossed in my shirt.
DUH! I now have the cleanest passport in town. 
: I left it in my shirt pocket.
I have visions of being at some southern AirPort check in ..... "
Okay, this guy's passport is clean! Book 'em,!"